ASTRO VG-877 - GRAELPS4 [28 H 47 H]: Graphic Plane Ellipse Drawing

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3.22 GRAELPS4 [28H 47H]: Graphic Plane Ellipse
drawing
Function : This command draw ellipse on the graphic plane
Sequence : Type 2
Command ：
STX
1 BYTE
02H
VG4CMD
1 BYTE
FDH
GRAELPS4
2 BYTE
28H 47H
Center X coordinate
2 to 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
,
1 BYTE
2CH (Delimiter)
Center Y coordinate
2 to 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
,
1 BYTE
2CH (Delimiter)
Radius RX
1 to 4 BYTE
"1" to "4095"
,
1 BYTE
2CH (Delimiter)
Radius RY
1 to 4 BYTE
"1" to "4095"
,
1 BYTE
2CH (Delimiter)
Color
1 to 3 BYTE
"0" to "255" *Note
ETX
1 BYTE
03H
Figure 3-22-1
Note : by executing “GRAPAL4 [28H 4EH] Graphic Palette Mode”, it can set in a
range of 0 to 4095.
PC
VG
STX～ETX
ACK or STX + ESTS + Error
code +ETX